Wilson e



No. 6l5,044. Patente d Nov. 29, I898. w. E. PORTER.

ALARM CLOCK.

(Application filed-Tune 2B, 1897.;

(No Model.)

UNITED STATES PATENT OEEIoE.

IVILSON E. PORTER, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO THE NEW HAVENCLOCK COMPANY, OF SAME PLACE.

ALARM-CLOCK.

SPECIFICATION forming part of Letters Patent No. 615,044, dated November29, 1898. Application filed June 23, 1897. Serial No. 642,581. (Nomodel.)

To all whont it nuty concern:

Be it known that I, WILSON E. PORTER, of New Haven, in the county of NewHaven and State of Connecticut, have invented a new ImprovementinAlarm-Clocks and I dohereby declare the following, when taken inconnection with the accompanying drawings and the letters of referencemarked thereon, to be a full,clear, and exact description of the same,and which said drawings constitute part of this specification, andrepresent, in-

Figure 1, a view in rear elevation of a clock constructed in accordancewith my invention; Fig. 2, a partial plan view thereof with particularreference to showing the connection of the supplemental badger-wheelarbor with the time-movement of the clock; Fig. 3, a detail view showingthe gearing between the said arbor and the arbor ot' the third wheel ofthe time-movement.

My invention relates to an improvement in that class of repeatingalarm-clocks which are by the trade called badger-alarms for the reasonthat instead of sounding a continuous alarm they are constructed tosound an intermittent or badger alarm, the object being to improve suchclocks with respect to the positiveness of their action and thereliability of their performance.

I may further add that my present invention is in fact an improvementupon the repeating alarm-clock shown and described in United StatesPatent No. 580,056, granted to the New Haven Clock Company April 6,1897, upon my application.

\Vith these ends in view my invention consists in a clock having certaindetails of construction and combinations of parts, as will behereinafter described, and pointed out in the claim.

In carrying out my invention as herein shown I employ in addition to theordinary parts of an alarm-clock an arbor A, which for convenience ofidentification I shall hereinafter call the alarm-arbor. This arborcarries an alarm-wheel B, which has the general characteristics of anesoapement-wheel. The said arbor has also mounted upon it a wheel C,which is meshed into bya wheel D, mounted upon the arbor E of the thirdWheel F of the time-movement, which does not need further description,as it may be of any approved construction. I may here remark that thealarm-arbor A and the wheels C and D are supplied to the clock over andabove the parts which it would ordinarily contain and are allsupplemental parts. I also wish to point out that the arbor A is mountedin the movement-plates G and G of the clock at a point above the centerarbor H thereof and therefore at a point relatively near the lockwork ofthe alarm mechanism, the said lockwork including the verge-arbor I, theverge I, mounted thereupon, the shut-off wire 1 which extends inwardtoward the arbor A, the hammer-hub I the hammer-tail 1 the hammer 1 thecounterbalance-arm I, and the counterbalance 1 the hub I being securedto the projecting rear end of the verge-arbor I. The escapement-likealarm-wheel B is rotated at a relatively slow or fast speed by changingthe wheels C and D, the rate of its rotation determining theintermittence between the soundings of the alarm. The said wheel Bcoacts for the sounding of the alarm with arepeating-fingerJ,formedintegral with and projecting inwardly from a stop-arm J, formed integralwith and extending inwardly from a sheet metal escapement -lever J whichswings upon a stud J mounted in the rear movement plate G of the clock.A light spring J engaging with the under edge of the lever J exerts aconstant effort to lift it upward forthe engagement of therepeatingiinger J with the wheel B. The extreme end of the stop-arm J,before mentioned, coacts with the lower end of the shut-off wire 1 aswill be hereinafter described. A shut-off 1ever K, formed of sheet metaland arranged in a substantially vertical position, is pivotall yconnected with the rear movement-plate G by means of a stud K, passingthrough its lower end, the said stud being located at a point betweenthe center arbor H and the badger-arbor A. The said shut-off leverextends above the movement and is furnished with a rearwardly-bentoperating-arm K by means of which the lever is manually operated forputting on and shutting off the alarm. The said lever is formed with ashutoff arm K which extends inwardly from it and coacts with theshut-off wire 1', before mentioned. The extreme lowerend of the shut-offlever is formed with a toe K, which coacts with the extreme outer end ofthe repeating-lever J A horizontally-arranged slot K formed in theshut-off lever, clears the projecting rear end of the arbor A.

The mechanism by means of which the alarm-train is periodically releasedby the time-movement may be of any ordinary construction and does notneed description. When it is released, the shut-off lever being set soas to put on the alarm, the repeatinglever J is at once lifted by itsspring J, whereby its stoparn1 is brought into position for engagementby the shut-off wire I and its repeating-finger lifted up between orpartially between the teeth of the alarm-wheel B. As the alarm-wheelrotates, its teeth will engage with the face of the finger J and depressthe repeating-lever sut'ficiently to clear the end of its stop-arm fromthe shut-off wire, whereby the alarm-train will be released and allowedto run so long as the repeating-lever is maintained in a depressedposition by the teeth of the alarm-wheel, which is engaged with therepeating-finger of the lever. I'Vhen, however, in the rotation of thesaid wheel the tooth is cleared from the said finger, the spring J actsimmediately to lift the lever, so asto introduce its finger, as it were,between the next succeeding tooth of the wheel, whereby the stop-arm ofthe lever is brought into position to coact with the shut-off wire ofthe lockwork. There will now be an intermission in the sounding of thealarm until the time-train has run long enough to revolve thealarm-wheel sufliciently to again depress the repeating-lever enough toclear its stoparm from the shutoff wire.

In the manner described the alarm will be intermittently set off atperiodic intervals. Such an alarm is much more effective than acontinuous alarm, because it is the starting of the alarm which wakensthe sleeper rather than a continuation of the noise. The alarm will beintermittently sounded until the sleeper gets up and shuts it off oruntil it is automatically shut OR by the action of the alarm mechanismin the usual way; but it will run for a relatively long time if not shutoff by the shut-off lever. hen it is desired to cut the alarm offaltogether, the shut-off lever is swung from left to right, whereby itsshut-off finger engages with the shut-off wire of the lockwork and locksthe verge 1 into the esca1: ement-wheel L. The same movoment of theshut-01f lever causes the toe K" of the same to act upon theescapement-lever, which is thus pushed down out of all engagement withthe alarm-wheel or shut-off wire.

By introducing into the cloclomovement a supplemental arbor and usingthe same as an arbor for the alarm-wheel instead of utilizing one of thearbors of the time-train for this wheel I am enabled to locate the saidarbor in the position most advantageous for it, which is relatively nearthe lockworlgwhereby the repeating alarm mechanism, so to speak, islocated close to the loekwork, thus simplifying the said parts andmaking their coacting members so short as to reduce the liability oftheir being bent and deranged to the minimum.

It is apparent that in carrying out my invention some changes from theconstruction herein shown and described may be made. I would thereforehave it understood that I do not limit myself to the exact constructionherein shown and described, but hold myself at liberty to make suchchanges and alterations as fairly fall within the spirit and scope of myinvention.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

In a repeating alarm-clock, the combination with the time-train thereofincluding a center arbor, of alarm mechanism including lookwork which islocated above the said center arbor, an alarm -wheel outside of the saidtrain and located above the said center arbor in close proximity to thesaid lockwork for intermittently releasing the alarm mechanism after thesame has been released by the action of the time-train in the usualmanner, means for carrying the said alarm-wheel, op erating connectionsbetween the said alarmwheel and the iime-train which drives thealarm-wheel continuously, a repeating-lever coacting with the saidalarm-wheel and lockwork, and a shutoff lever coacting with therepeating-lever for shutting off the alarm and for clearing the saidrepeating-lever from the alarm-wheel whereby the time-train is relievedof the drag of the repeatingdever.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

\VILSON E. PORTER.

Witnesses:

EUGENE CARTIER, D. .T. IITNMAN.

